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Real-time writing suggestions
in every macOS app
ToneMate monitors your writing as you type — catching grammar mistakes, spelling errors, and tone mismatches instantly, without leaving the app you're in.
Unlike browser-based writing tools, ToneMate is a native macOS assistant that works system-wide. Get inline suggestions in Mail, Notes, Notion, Slack, or any text field, powered by local or cloud AI.
Why writers choose ToneMate
Instant corrections
Grammar, spelling, and punctuation fixed as you type — no copy-pasting required.
Tone awareness
Detects when your phrasing is too casual, aggressive, or unclear for the context.
Works everywhere
Any text field on macOS — email clients, documents, messaging apps, code editors.
A native macOS writing assistant that never leaves your side
ToneMate's Inline Assistant works the way writing tools should: quietly in the background, surfacing corrections only when they matter. It detects grammar errors, awkward phrasing, and tone inconsistencies the moment you finish a sentence.
Most writers know tools like Grammarly, ProWritingAid, or Hemingway Editor. These are great browser-based or desktop solutions, but they require you to copy text into a separate interface. ToneMate takes a different approach: it integrates at the macOS system level, so it works in any app, all the time, without interrupting your flow.
With ToneMate you get inline writing assistance with a one-time payment — no monthly subscription, no data sent to third-party servers unless you choose a cloud model. Use a local LLM with Ollama for full privacy, or connect to OpenAI or Anthropic for maximum power. You decide.
Whether you're writing a client proposal in Pages, a support reply in your email client, or technical documentation in a markdown editor, ToneMate's inline assistant is there — giving you the confidence to write better, faster.
Real-time suggestions, zero friction
1. ToneMate runs in the background
Once active, ToneMate monitors any text field you type in across macOS — nothing to open or switch to.
2. Errors are highlighted inline
Grammar mistakes, misspellings, and tone issues are flagged with subtle underlines directly in your text.
3. Tap to see suggestions
Click any highlighted word to see AI-powered alternatives ranked by fit, with a one-tap apply.
4. Text is corrected instantly
Accept the suggestion and your text is updated in place — no clipboard, no pop-ups, no context switching.
Every writing context, covered
Professional emails
Write client and team emails with perfect grammar and the right tone, every time.
Long-form documents
Reports, proposals, and whitepapers proofreaded inline as you write each paragraph.
Developer documentation
Technical docs and READMEs with clear, consistent language that developers trust.
Social & marketing copy
Catch embarrassing typos before hitting publish on tweets, posts, or ad copy.
Tips for inline writing assistance
Set your preferred tone (professional, casual, assertive) in ToneMate settings for more accurate suggestions.
Use a local Ollama model for fully private inline corrections with no internet dependency.
Combine inline corrections with the Rewrite action to rephrase entire paragraphs after fixing errors.
The assistant works best when you finish full sentences — it reads context, not just isolated words.
Review all suggestions before accepting, especially for domain-specific jargon ToneMate may not recognize.
Common questions about ToneMate's inline writing assistant
How is ToneMate different from Grammarly?
Grammarly is a subscription-based service that requires a browser extension or separate app. ToneMate is a native macOS application with a one-time purchase that integrates system-wide, works offline with local AI models (Ollama), and never sends your text to any third party unless you choose a cloud model. It's designed for Mac users who value privacy and a clean workflow.
Does it work like Grammarly's real-time suggestions?
Yes — ToneMate's Inline Assistant checks your writing as you type and highlights errors directly in the text field, similar to how Grammarly works. The key difference is it works in any macOS app natively, not just in a browser or a specific app.
Will it work in all my macOS apps?
ToneMate is designed to work across any text input on macOS — including Mail, Notion, Slack, Pages, Obsidian, VS Code, and many more. Coverage depends on the accessibility permissions granted on your Mac.
Can I use it offline?
Yes. Connect ToneMate to a local Ollama model and all corrections happen on-device with no internet required. This is ideal for sensitive documents or environments without reliable connectivity.
Is there a monthly fee?
No. ToneMate is a one-time purchase — no subscriptions, no recurring charges. Unlike Grammarly's monthly or annual plans, you pay once and own the software.
How accurate is the inline grammar checker?
Accuracy depends on the AI model you use. With cloud AI models from OpenAI or Anthropic, it matches or exceeds the quality of leading writing tools. With local models, performance varies by model size and hardware.
Write better in every macOS app
Get real-time writing suggestions without subscriptions, browser extensions, or copy-pasting.